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  <title>Draws an arc</title>
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  <div id="layout-content"><div id="imagickdraw.arc" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ImagickDraw::arc</h1>
  <p class="verinfo">(PECL imagick 2, PECL imagick 3)</p><p class="refpurpose"><span class="refname">ImagickDraw::arc</span> &mdash; <span class="dc-title">Draws an arc</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-imagickdraw.arc-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>ImagickDraw::arc</strong></span>(<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$sx</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$sy</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$ex</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$ey</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$sd</code></span>,<br>&nbsp;&nbsp;&nbsp;&nbsp;<span class="methodparam"><span class="type">float</span> <code class="parameter">$ed</code></span><br>): <span class="type">bool</span></div>

  <div class="warning"><strong class="warning">警告</strong><p class="simpara">本函数还未编写文档，仅有参数列表。</p></div>
  <p class="para">
   Draws an arc falling within a specified bounding rectangle on the image.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-imagickdraw.arc-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>
    
     <dt>
<code class="parameter">sx</code></dt>

     <dd>

      <p class="para">
       Starting x ordinate of bounding rectangle
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">sy</code></dt>

     <dd>

      <p class="para">
       starting y ordinate of bounding rectangle
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">ex</code></dt>

     <dd>

      <p class="para">
       ending x ordinate of bounding rectangle
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">ey</code></dt>

     <dd>

      <p class="para">
       ending y ordinate of bounding rectangle
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">sd</code></dt>

     <dd>

      <p class="para">
       starting degrees of rotation
      </p>
     </dd>

    
    
     <dt>
<code class="parameter">ed</code></dt>

     <dd>

      <p class="para">
       ending degrees of rotation
      </p>
     </dd>

    
   </dl>

  </p>

 </div>

 <div class="refsect1 returnvalues" id="refsect1-imagickdraw.arc-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-imagickdraw.arc-examples">
  <h3 class="title">范例</h3>
  <p class="para">
    <div class="example" id="example-2912">
      <p><strong>示例 #1 <span class="function"><strong>ImagickDraw::arc()</strong></span> example</strong></p>
      <div class="example-contents">
      <div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">function&nbsp;</span><span style="color: #0000BB">arc</span><span style="color: #007700">(</span><span style="color: #0000BB">$strokeColor</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$fillColor</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$backgroundColor</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$startX</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$startY</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endX</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endY</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$startAngle</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endAngle</span><span style="color: #007700">)&nbsp;{<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//Create&nbsp;a&nbsp;ImagickDraw&nbsp;object&nbsp;to&nbsp;draw&nbsp;into.<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;\</span><span style="color: #0000BB">ImagickDraw</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setStrokeWidth</span><span style="color: #007700">(</span><span style="color: #0000BB">1</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setStrokeColor</span><span style="color: #007700">(</span><span style="color: #0000BB">$strokeColor</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setFillColor</span><span style="color: #007700">(</span><span style="color: #0000BB">$fillColor</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setStrokeWidth</span><span style="color: #007700">(</span><span style="color: #0000BB">2</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$draw</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">arc</span><span style="color: #007700">(</span><span style="color: #0000BB">$startX</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$startY</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endX</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endY</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$startAngle</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$endAngle</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//Create&nbsp;an&nbsp;image&nbsp;object&nbsp;which&nbsp;the&nbsp;draw&nbsp;commands&nbsp;can&nbsp;be&nbsp;rendered&nbsp;into<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$image&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;\</span><span style="color: #0000BB">Imagick</span><span style="color: #007700">();<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$image</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">newImage</span><span style="color: #007700">(</span><span style="color: #0000BB">IMAGE_WIDTH</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">IMAGE_HEIGHT</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$backgroundColor</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$image</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">setImageFormat</span><span style="color: #007700">(</span><span style="color: #DD0000">"png"</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//Render&nbsp;the&nbsp;draw&nbsp;commands&nbsp;in&nbsp;the&nbsp;ImagickDraw&nbsp;object&nbsp;<br />&nbsp;&nbsp;&nbsp;&nbsp;//into&nbsp;the&nbsp;image.<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">$image</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">drawImage</span><span style="color: #007700">(</span><span style="color: #0000BB">$draw</span><span style="color: #007700">);<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #FF8000">//Send&nbsp;the&nbsp;image&nbsp;to&nbsp;the&nbsp;browser<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #0000BB">header</span><span style="color: #007700">(</span><span style="color: #DD0000">"Content-Type:&nbsp;image/png"</span><span style="color: #007700">);<br />&nbsp;&nbsp;&nbsp;&nbsp;echo&nbsp;</span><span style="color: #0000BB">$image</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">getImageBlob</span><span style="color: #007700">();<br />}<br /><br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
      </div>

    </div>
  </p>
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